The rear side of a truck is open and a box of mass 20 kg is placed on the truck 4 m away from the open end 
and 
. The truck starts from rest with an acceleration of 
on a straight road. The box will fall off the truck when it is at a distance from the starting point equal to
Text Solution
Verified by ExpertsThe correct answer is:
A
Maximum acceleration of the box can be 
or 
, while acceleration of truck is
.
Therefore, relative acceleration of the box will be 
(backward). It will fall off the truck in a time,
Displacement of truck upto this instant,
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